Based on your post history you stutter severely. There are many posts in here about people with all types of jobs, including executives. What lacking is the severity of their speech disfluency. As for advise, focus on your strengths. Aptitude in certain academic fields, digital space, technical hands-on work, art. I stutter everyday at work and calls. Not severely, but obvious enough it stops the momentum of a conversation. I’m happy in a technical role where my work speaks for itself, and experienced now where people want to hear my opinion.